EP0627969B1 - Procede et dispositif de taillage en couteau-fraise par generation - Google Patents

Procede et dispositif de taillage en couteau-fraise par generation Download PDF

Info

Publication number
EP0627969B1
EP0627969B1 EP93905424A EP93905424A EP0627969B1 EP 0627969 B1 EP0627969 B1 EP 0627969B1 EP 93905424 A EP93905424 A EP 93905424A EP 93905424 A EP93905424 A EP 93905424A EP 0627969 B1 EP0627969 B1 EP 0627969B1
Authority
EP
European Patent Office
Prior art keywords
lathe
axis
tool
workpiece
turning
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP93905424A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0627969A1 (fr
Inventor
Pierre Gradel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0627969A1 publication Critical patent/EP0627969A1/fr
Application granted granted Critical
Publication of EP0627969B1 publication Critical patent/EP0627969B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
    • B23B27/10—Cutting tools with special provision for cooling
    • B23B27/12—Cutting tools with special provision for cooling with a continuously-rotated circular cutting edge; Holders therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23F—MAKING GEARS OR TOOTHED RACKS
    • B23F13/00—Making worms by methods essentially requiring the use of machines of the gear-cutting type
    • B23F13/02—Making worms of cylindrical shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23F—MAKING GEARS OR TOOTHED RACKS
    • B23F23/00—Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines
    • B23F23/12—Other devices, e.g. tool holders; Checking devices for controlling workpieces in machines for manufacturing gear teeth
    • B23F23/1237—Tool holders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23F—MAKING GEARS OR TOOTHED RACKS
    • B23F5/00—Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made
    • B23F5/20—Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made by milling
    • B23F5/202—Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made by milling the tool having a shape similar to that of a gear or part thereof, with cutting edges situated on the tooth contour lines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q27/00—Geometrical mechanisms for the production of work of particular shapes, not fully provided for in another subclass
    • B23Q27/006—Geometrical mechanisms for the production of work of particular shapes, not fully provided for in another subclass by rolling without slippage two bodies of particular shape relative to each other
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/300056—Thread or helix generating
    • Y10T409/300672—Thread or helix generating with means to rotate work and means to interrelatedly infeed the work relative to the cutter
    • Y10T409/300728—Means to infeed the cutter

Definitions

  • the present invention relates to machining methods and devices for cutting helical threads on a workpiece held by the spindle of a lathe.
  • Lathes are usually designed to carry out various machining operations on a workpiece, including turning, milling, drilling.
  • the lathes currently used do not include any means for economically cutting helical threads on the part held by the lathe spindle.
  • one thread can be made on a lathe by successive passes of a cutting tool with hollow profile of threads.
  • the cutting tool is supported on the lateral face of the part, and the tool is gradually displaced in longitudinal translation according to the pitch of the thread to be produced.
  • Such a process requires several successive passes of the same tool, so that the operation is long and expensive.
  • the problem proposed by the present invention is to design a new device which can be adapted on a lathe, and which is capable of cutting helical threads with a speed compatible with other machining operations achievable on the same lathe.
  • the invention aims to carry out on the same lathe and on the same part various successive machining operations including the machining of a helical thread.
  • An entire part is thus produced using a single machine rather than using several successive machines, which allows work on the one hand to be hidden, and on the other hand a better quality: one can indeed obtain a better concentricity of the various parts of the part, one can achieve a better precision in the relative distances between the different parts of the part obtained by successive machining, one eliminates the losses of time due to handling between various machines.
  • the invention also aims to reduce costs by simplifying the machines used, in particular by making maximum use of the various parts of the lathe.
  • the worm shaft is rotated by the spindle motor, to which it is connected by an appropriate mechanical transmission of the lathe.
  • the worm shaft is mechanically connected to a PTO of the lathe by a cardan transmission.
  • the worm shaft is driven by an auxiliary motor controlled by the digital control of the tower.
  • the rotation of the turning tool takes place at a speed such that the apparent longitudinal sliding between the active portion of the cutting edge and the surface of the workpiece is substantially zero.
  • the machining device according to the invention comprises a traditional lathe, which can be a single spindle lathe or a multispindle lathe. Due to their traditional and common character, the essential parts of such a tower are not shown in the drawings. Only FIG. 7 gives a schematic representation of the kinematics of the lathe provided with the device according to the invention.
  • the device according to the invention is adapted on a traditional lathe comprising at least one spindle driven in rotation by drive means around a spindle axis II, shown in FIG. 1, the spindle being shaped to hold a workpiece 1. Workpiece 1 is thus rotated along axis II of spindle, in a direction of rotation represented by arrow 2.
  • the lathe comprises, in a traditional manner, a tool-carrying carriage, not shown in FIG. 1, which can move in translation along a radial diving axis III perpendicular to the spindle axis II, to fix a chosen diving value P .
  • the tool carriage can also move in translation on the lathe frame along a turning axis IV.
  • the spindle In a movable headstock lathe, it is the spindle which itself moves in translation along the axis of turning IV, which is then parallel to the axis I-I of spindle.
  • a relative movement of the tool carriage and of the spindle is ensured along the axis of slewing IV.
  • the turning axis IV is parallel to the spindle axis I-I.
  • the turning axis IV can be oblique to the axis I-I of the spindle.
  • the turning tool 3 is carried by the tool carriage, and has, in known manner, at least one cutting edge 4 capable of coming into contact with the lateral surface of the workpiece 1 so that, s opposing the rotation of the workpiece 1 in the direction 2, the cutting edge removes material on the lateral surface of the workpiece 1.
  • the turning tool 3 used for cutting the threads comprises a plurality of successive cutting edge portions, each capable of successively engaging the workpiece 1 to ensure the machining of the surface of room.
  • the device further comprises tool drive means for rotating the turning tool 3 along an axis of rotation II not parallel to the spindle axis I-I. The rotation of the turning tool 3 along its axis of rotation II makes it possible to bring successively into contact with the workpiece 1 said successive portions of the cutting edge 4 of the turning tool 3.
  • the tool drive means are adapted to drive the turning tool 3 according to a rotation R, the value of which depends on the translation C of the carriage along the axis of slewing IV.
  • the turning tool 3 comprises a continuous cutting edge 4 developing in a plane perpendicular to the axis of rotation II of the turning tool 3.
  • the edge of section 4 is the edge formed at the intersection between a front face 40 of advantageously planar tool and a lateral face 41.
  • the turning tool 3 is rotated, directly or indirectly, by a pinion 5 engaged on a worm screw 6.
  • the worm screw 6 is mounted on a shaft 7 oriented in a direction V fixed relative to the frame of the lathe and parallel to the turning axis IV.
  • the worm shaft 7 In the case of a fixed headstock tower, the worm shaft 7 is fixed in axial translation on the tower frame.
  • the worm shaft 7 follows in axial translation the lathe spindle, or, alternatively, an additional rotation is imparted to the worm 6 so that the active surface of the tool follows without apparent slip the movements of the spindle.
  • the pinion 5 is mounted on the same shaft as the turning tool 3.
  • the endless screw 6 is then supported on the pinion 5 on the same side as the active edge part cutting tool 4 for turning tool 3.
  • the endless screw 6 is applied to the pinion 5 along the face opposite to the active cutting edge part 4 of the turning tool 3.
  • the pinion 5 being mounted on a secondary shaft 9 parallel to the shaft 8 of the turning tool 3, the secondary shaft 9 carrying a first transmission wheel 10 engaged on a second transmission wheel 11 itself carried by the shaft 8 of the turning tool 3.
  • the transmission by the wheels 10 and 11 therefore reverses the rotational movement between the pinion 5 and the turning tool 3.
  • Figures 3 to 5 show the general structure of a tool holder 12 according to the invention, mounted on the tower structure.
  • the tool holder 12 comprises a fixed assembly formed by a support 13 and a screw holding member 14.
  • the support 13 is fixed to the frame of the lathe, by fixing means not shown.
  • the screw holding member 14 is fixed to the support 13 by fixing means, for example fixing means allowing adjustment by longitudinal translation along an axis parallel to the turning axis IV.
  • the support 13 is provided with longitudinal slides 15 along the axis of the carriage IV, intended to receive a corresponding portion 16 of the tool-carrying carriage 17.
  • the tool-carrying carriage 17 is movable in longitudinal translation on the support 13 along the 'carriage axis IV.
  • the tool carriage 17 is provided with a longitudinal passage 18 allowing the free sliding of the worm 6 and its shaft 7.
  • the screw holding member 14 holds the worm 6 and the shaft 7 in a fixed longitudinal position on the tower frame along the axis of slewing IV.
  • the worm 6 and the shaft 7 remain in fixed axial positions relative to the tower frame.
  • the endless screw 6 is kept fixed in rotation, and serves as a rack for the pinion 5.
  • the turning tool 3 is thus pivoted in a rotation whose value R is directly proportional to the value of the translation C of the carriage 17 along the axis of slewing IV.
  • the turning tool 3 has a continuous and serrated cutting edge 4, the successive portions of which are adapted to produce the shape of the lateral surface of the part 1 desired.
  • the worm screw 6 can be pivoted a value controlled by the advance of the spindle and the workpiece.
  • the endless screw 6 is also given a rotational movement, to produce a complementary rotation of the turning tool 3 according to an equal tool rotation speed. to a submultiple of the spindle speed of the lathe.
  • the worm shaft 7 can be rotated by the spindle motor itself, to which it is connected by an appropriate mechanical transmission, illustrated in Figure 7.
  • This figure represents the kinematics of a revolution multi-spindle, with a main drive shaft 50 making it possible to drive all the organs of the lathe, and in particular the spindles such as the two spindles 51 and 52.
  • Various sockets are provided opposite each spindle such as the spindle 51 PTOs, such as for example the PTOs 53 and 56, corresponding to appropriate fractions of the speed of rotation of the main shaft 50 and the corresponding spindle 51.
  • the tool holders associated with each of the spindles 51 and 52 are movable in longitudinal translation, and is actuated by the usual means of actuation of the lathe.
  • the tool holder 17 thus slides longitudinally on the support 13 fixed to the frame of the lathe, and drives in its translation the tool 3 rotatably mounted on a tool rotation axis.
  • the tool 3 is driven in rotation by a pinion engaged on an endless screw carried by a screw shaft 7.
  • the screw shaft 7 is driven in rotation by the spindle motor to which it is connected by a suitable mechanical transmission: as shown, the worm shaft 7 is connected to a power take-off 53 of the lathe by a cardan transmission 54 and possibly a gear train 55.
  • a cardan transmission 54 and possibly a gear train 55.
  • the worm shaft 7 can be driven by an auxiliary motor controlled by the digital control of the lathe.
  • a turning method according to the invention by means of a lathe provided with a workpiece spindle and a turning tool 3 mounted on a tool holder 17, is thus characterized by the fact that, during turning , the turning tool 3 is gradually pivoted by rotation about an axis II not parallel to the spindle axis II in order to bring successively into contact with the workpiece 1 of the successive portions of the cutting edge 4 of the turning tool 3.
  • the rotation of the turning tool 3 takes place at a speed such that the apparent longitudinal sliding between the active portion of cutting edge 4 and the surface of the workpiece 1 is substantially zero.
  • the device according to the invention makes it possible to produce very diverse shapes on the external surface of a part.
  • the shape of the turning tool 3 is determined according to the shape of the part to be produced. In principle, therefore, a specific tool is required for each form of part to be produced.
  • a turning tool 3 is used whose lateral surface 41 is serrated, as shown diagrammatically in FIG. 1.
  • the cutting edge 4 has a wavy shape, the corrugations being chosen as a function of the size of the threads to be produced on the part 1.
  • FIG. 6 illustrates an exemplary embodiment of a part 1 with a variable profile by means of the turning tool 3.
  • the longitudinal profile of the part 1 to be produced there is a front end face 20, a first cylindrical segment 21, a second cylindrical segment 22 of larger diameter, an annular groove 23, an annular recess 24, a second annular recess 25, a cylindrical end portion 26.
  • the turning tool 3 itself has a profile such that the cutting edge comprises successive portions corresponding to each of the specific shapes of the part 1.
  • a portion 30 corresponding to the face 20 of the part a successive portion 31 corresponding in segment 21, a second successive portion 32 corresponding to segment 22, a projecting portion 33 corresponding to the annular groove 23, a portion slightly projecting 34 corresponding to the annular recess 24, another successive portion 35 corresponding to the second annular recess 25, and finally a circular portion 36 corresponding to the cylindrical end portion 26, said circular portion 36 being centered on the axis of rotation II of the turning tool.
  • the front face 40 of the turning tool 3 is positioned substantially at the center of the workpiece 1, that is to say that the plane in which the front face 40 of the tool is located turning 3 contains the spindle axis II.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Turning (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
EP93905424A 1992-02-27 1993-02-25 Procede et dispositif de taillage en couteau-fraise par generation Expired - Lifetime EP0627969B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9202550 1992-02-27
FR9202550A FR2687945B1 (fr) 1992-02-27 1992-02-27 Procede et dispositif de tournage par generation.
PCT/FR1993/000186 WO1993016832A1 (fr) 1992-02-27 1993-02-25 Procede et dispositif de taillage en couteau-fraise par generation

Publications (2)

Publication Number Publication Date
EP0627969A1 EP0627969A1 (fr) 1994-12-14
EP0627969B1 true EP0627969B1 (fr) 1996-07-17

Family

ID=9427312

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93905424A Expired - Lifetime EP0627969B1 (fr) 1992-02-27 1993-02-25 Procede et dispositif de taillage en couteau-fraise par generation

Country Status (8)

Country Link
US (1) US5516240A (es)
EP (1) EP0627969B1 (es)
JP (1) JP2620507B2 (es)
AT (1) ATE140404T1 (es)
DE (1) DE69303704T2 (es)
ES (1) ES2092289T3 (es)
FR (1) FR2687945B1 (es)
WO (1) WO1993016832A1 (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2720964B1 (fr) * 1994-06-09 1997-01-24 Pierre Gradel Dispositif de taillage de pièces sur un tour.
US5751586A (en) * 1995-12-01 1998-05-12 Grabovac; Bosko CNC machine tool
US6681835B2 (en) * 2001-04-27 2004-01-27 Ishikawajima-Harima Heavy Industries Co., Ltd. Method and apparatus for manufacturing supercharger rotor
US8573901B2 (en) 2003-09-02 2013-11-05 Kennametal Inc. Assembly for rotating a cutting insert during a turning operation and inserts used therein
CN103128553A (zh) * 2013-01-16 2013-06-05 苏州爱博纳重工装备科技有限公司 数控曲柄车铣床

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1384913A (en) * 1921-07-19 Tool works
US1404386A (en) * 1919-11-10 1922-01-24 Grauer Joseph Thread-cutting machine
FR511480A (fr) * 1920-02-28 1920-12-27 Louis Exner Outil pour le décolletage en série de petites pièces en métal ou autres matières
US1434430A (en) * 1920-05-01 1922-11-07 Cornelis Jean Screw-cutting machine
US1562705A (en) * 1921-08-13 1925-11-24 Gen Phonograph Mfg Company Thread-cutting machine
US1461219A (en) * 1921-11-15 1923-07-10 Fellows Gear Shaper Co Machine for generating and cutting threads and the like
US1681994A (en) * 1924-04-15 1928-08-28 Fellows Gear Shaper Co Method of generating tooth forms
US1853643A (en) * 1929-11-15 1932-04-12 Oliver G Simmons Method of and apparatus for generating the convolute teeth or threads of worms and the like
US3230830A (en) * 1957-07-10 1966-01-25 Romi Giordano Rack bar cutting machine
US3854353A (en) * 1973-06-20 1974-12-17 Bendix Corp Method and apparatus for performing a threading operation on a rotating workpiece

Also Published As

Publication number Publication date
ES2092289T3 (es) 1996-11-16
ATE140404T1 (de) 1996-08-15
WO1993016832A1 (fr) 1993-09-02
DE69303704D1 (de) 1996-08-22
JPH07500538A (ja) 1995-01-19
DE69303704T2 (de) 1997-02-27
EP0627969A1 (fr) 1994-12-14
FR2687945B1 (fr) 1996-10-18
FR2687945A1 (fr) 1993-09-03
US5516240A (en) 1996-05-14
JP2620507B2 (ja) 1997-06-18

Similar Documents

Publication Publication Date Title
FR2565139A1 (fr) Machine-outil a deux broches porte-piece
FR2560541A1 (fr) Machine executant diverses operations d'usinage, telles que tournage, fraisage, alesage
FR2545395A3 (fr) Tete tournante rapportable, en particulier tete de tournage plan
JP2004512185A (ja) 組合せ機械
EP0627969B1 (fr) Procede et dispositif de taillage en couteau-fraise par generation
EP0876234B1 (fr) Tour a trois axes et cinematique polaire
EP0686451B1 (fr) Dispositif de taillage de pièces sur un tour
EP1522378A1 (fr) Machine-outil à 5 axes d'usinage avec système de taillage de meule en continu
FR2610858A1 (fr) Ensemble d'elements de motorisation de la table porte-piece d'une machine automatique a tailler les engrenages
FR2704789A1 (fr) Tête révolver multibroche pour machine-outil.
FR2481169A1 (fr) Tete de fraisage a rotation excentree
FR2794044A1 (fr) Dispositif pour sectionner des tubes
EP0086243A1 (fr) Dispositif porte-outil en particulier pour machine-outil d'un type universel permettant de réaliser notamment des usinages tels que des rainures en arc de cercle
EP0786301B1 (fr) Instrument à main non motorisé pour l'usinage de pièces notamment de pièces métalliques
EP0203875B1 (fr) Structure de machine-outil
EP0669186A1 (fr) Procédé de fraisage d'au moins une région localisée d'une pièce
CH652065A5 (en) Finishing machining device using brushing
EP0050178A1 (fr) Dispositif d'entraînement d'une barre de matière par commande numérique dans un tour automatique
FR2564012A1 (fr) Plateau d'alesage-dressage, notamment pour ensemble d'usinage a tetes interchangeables
EP0771247A1 (fr) Procede et dispositif d'usinage d'une piece par enlevement ou refoulement de matiere, et pieces usinees selon ce procede
FR2469234A1 (fr) Broche porte-outil
FR2503608A1 (fr) Dispositif pour l'usinage de surfaces coniques par electro-erosion
FR2579499A1 (fr) Tete de fraisage a commande numerique destinee a la generation de surfaces tridimensionnelles
CH664311A5 (en) Multiple tool lathe - has number of different tools mounted on periphery of rotatable drum belt-driven from motor
FR2466303A1 (en) Cutter for gear wheel - uses inter-articulating pair of pinion trains to co-ordinate cutter and piece rotation with linear displacements

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19940713

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE

17Q First examination report despatched

Effective date: 19941229

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19960717

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19960717

Ref country code: DK

Effective date: 19960717

REF Corresponds to:

Ref document number: 140404

Country of ref document: AT

Date of ref document: 19960815

Kind code of ref document: T

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: 69153

REF Corresponds to:

Ref document number: 69303704

Country of ref document: DE

Date of ref document: 19960822

ITF It: translation for a ep patent filed

Owner name: MODIANO & ASSOCIATI S.R.L.

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19961017

Ref country code: PT

Effective date: 19961017

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19961004

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: ZIMMERLI, WAGNER & PARTNER AG

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2092289

Country of ref document: ES

Kind code of ref document: T3

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19970228

Ref country code: BE

Effective date: 19970228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19970306

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

Ref document number: 69153

Country of ref document: IE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
BERE Be: lapsed

Owner name: GRADEL PIERRE

Effective date: 19970228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Effective date: 19970831

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19980227

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19990201

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 19990222

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19990224

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990225

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19990225

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000225

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000226

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000229

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000229

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20000225

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20001201

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20011010

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20020219

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20031031

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050225